2. Advanced Medium Access ControlProtocols2.1 Traditional CSMA/CD 2.2 The 802.11 MAC Protocol for
Wireless LANs ............................................................................................................ What is a LAN?Let collisions take
place, detect them, repeat the transmission. Whenthestationfindsthe medium idleittransmitsimmediately. When it finds the
medium busy it waits
for the end of the other transmission and then starts its own
transmission immediately (transmission
probability = 1). Whenthestationfindsthe medium idleittransmitsimmediately. Whenthestationfindsthe medium busyitstopssensing, waits a randomexponentialback off time andthenstarts a newtransmissionattempt.
to communicate directly with each other, without connection to a wired network.The stations do not
have a “forwar-ding” functionality.
The IBSS only permits one-hop communication
(1-hop ad-hoc mode).
(1-hop ad-hoc mode).
(1-hop ad-hoc mode).